Bosh-plate.



Patented' .lull/'16, 190|.

J. KENNEDY.

BUSH PLATE.

(pplication filed Sept. 11, 1900.)

Sheet I {No.Model.)

R O T N w m fw,

WITNESSES tu: Nonms Evans co., mom-uma.. wnmcwre. n. c.,

No; 678,785. v Patentd luly I6, 190|. J. KENNEDY.

BUSH PLATE. (Appucacign med Sept. '11, 1900.)

2 Sheets-Sheet 2.

INVENTOR WITNESSES reirse rames arena trice.

JULIAN KENNEDY, OF PITTSBRG, PENNSYLVANIA.

SPECIFICATION forming part 0f Letters Patent No. 678,785, dated July 16, 1901. Application filed September l1, 1900. SerialNo. 29.648. (No model.)

.To all whom t may concern:

Be it known that I, JULIAN KENNEDY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Bosh-Plates, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure l is a partial vertical section showing a blast-furnace provided with my improved bosh-plates. Fig. 2 is a brokenside elevation of the same; and Figs. 3 and et are views similar to Figs. l and 2, respectively, showing my preferred form of arranging the plates.

My invention relates t0 the cooling-plates employed in the boshes of blast-furnaces, and is designed to so improve their construction and arrangement that they will be held firmly in place even when the inner part of the wall is eaten away around them and so that the bosh-Walls may be made much thinner than was heretofore possible. To that end the invention consists in securing the outer protruding portion of the bosh-plate to the furnace preferably by bolting it to one of the en circling bands commonly used in this part of the furnace.

In the drawings, referring to the form of Figs. l and 2, 2 represents the bosh -wall of a blast-furnace, having its brickwork provided with encircling bands 3, which are arranged in step fashion, as shown. The cooling bosh-plates 4, which may be of any desired form and size,are provided with depending lugs or lianges 5, having strengtheningribs 0, these lugs being bolted to the bands, as shown. Each bosh-plate is also preferably provided with an upper outward extension having an upward flange or lip '7, which will fit against the lower portion of the next succeeding band above it. The bosh-plates are thus securely held in position and will be so retained even where the Wall is eaten away. The strengthening-ribs may be provided with a hole 8 for the insertion of a hook to be used in withdrawing the plates.

In the form of Figs. 3 and e the bosh-platee a are substantially the same as in the pre- 5o vious form, but are spaced apart at their ends to allow the introduction of spacing-plates 9, which carry the strains between the bands, and thus relieve the bosh-plates themselves. I prefer to use this latter construction, since there is less danger of breaking the bosh; plates and they need not be made as strong as in the first form.

In using the plates they may be built into the bosh-wall in the usual manner, but are fastened to the bands Vin the manner shown.

The advantages of the invention are obvious, since the bosh-walls may be made much thinner than was formerly possible, and the plates will be prevented from tilting or dropping down, even where the wall is eaten away around it. Liability to accident is thuslargely avoided.

Many variations may be made in the form of the bosh-plate and its cooling-passages and connections without departing from. my invention.

I claim l. A coclingplate having mechanism for fastening it to the band of a blast-furnace, said mechanism being arranged to fit against the outer portion of the band and allow removal of the cooling-plate and its securing mechanism, without disturbing said band; substantially as described.

2. A coolingplate having lateral lugs or projections and means for bolting them to the furnace-band; substantially as described.

3. A bosh-plate having an upper projection arranged to fit against a furnace-band, and a lower portion having means for securing it to another furnace-band; substantially as described.

4. A blastfurnace having encircling bands and provided with a coolingplate located between the lines of the bands and secured to them by mechanism arranged to allow removal without disturbing the bands; substantially as described.

5. A blast-furnace having its bosh provided with encircling bands arranged in step fashion, and boslrplates having their outer portions secured to said bands, said plates being arranged for removal Without disturbing,` the tically between them, and cooling-plates se 'furnace-bands; substantially as described. cured to the bands; substantially as described. 1o A6. A blast-furnace having an encircling In testimony whereof I have hereunto set band, and a coolingplate secured to the band my hand.

5 by means exterior thereto; substantially as JULIAN KENNEDY.

described. Witnesses:

7. Ablast-furnacehavingitsbosh provided H. M. CORWIN, with encircling bands, spacers extending Ver# C. P. BYRNES. 

